diff --git a/configuration.nix b/configuration.nix
index b0e8ab8..3b55094 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -31,15 +31,6 @@ in
           hash = "sha256-1zxrT7phXeQYNbWHWMyPuHiUglrPSMPP0bfAcfvt8dM=";
         };
       });
-      stm32cubemx = prev.stm32cubemx.override {
-          fetchzip = args: prev.fetchzip (args // {
-              url = "http://${serverIP}/stm32cube_mx_v6111-lin.zip";
-              hash = "sha256-By9T43GLM1J63TkRi3kl05h1RflBorU1QHgYOrXQ9N0=";
-          });
-          buildFHSEnv = args: prev.buildFHSEnv ( args // {
-              unshareNet = true;
-          });
-      };
     })
   ];
   users.users.student = {
@@ -124,8 +115,7 @@ in
         inputs.kompas3d.packages.${pkgs.system}.default # KOMPAS-3D
         freecad elmerfem gmsh # FEM calculation
 
-        #inputs.stm32cubemx.packages.x86_64-linux.stm32cubemx
-	stm32cubemx
+        inputs.stm32cubemx.packages.x86_64-linux.stm32cubemx
 
         pandoc
         onlyoffice-desktopeditors # к сожалению, пока у OnlyOffice баг со шрифтами. Ждём фикс
@@ -200,7 +190,6 @@ in
         # актуально для разработчиков ПО (встраивание диаграмм в код)
         # поддерживается нашей поставкой IJ IDEA CE
         plantuml
-        graphviz
 
         archi # поддержка archimate
 
@@ -211,7 +200,6 @@ in
         stlink
         stlink-gui
         stm32loader
-        openocd
 
         ##### СЕТЕВЫЕ УТИЛИТЫ ######
         # установлен Cisco Packet Tracer, обернут в firejail чтобы не стучался на Netacad.com
@@ -522,6 +510,7 @@ in
             with vscode-extensions;
             [
               ms-vscode.cpptools-extension-pack
+              zainchen.json
               ms-dotnettools.csharp
               formulahendry.code-runner
               tomoki1207.pdf
@@ -540,6 +529,12 @@ in
               timonwong.shellcheck
             ]
             ++ pkgs.vscode-utils.extensionsFromVscodeMarketplace [
+              {
+                name = "better-cpp-syntax";
+                publisher = "jeff-hykin";
+                version = "1.27.1";
+                sha256 = "sha256-GO/ooq50KLFsiEuimqTbD/mauQYcD/p2keHYo/6L9gw=";
+              }
               {
                 name = "vscode-cppcheck";
                 publisher = "brobeson";
@@ -676,25 +671,6 @@ in
       PGUSER = "postgres";
     };
   };
-
-
-
-  systemd.user.services.stm32cubemx-repo =
-  let
-    stm32f1-v180 = builtins.fetchTarball { url = "http://${serverIP}/STM32Cube.tar.gz"; sha256 = "sha256:1zlcp82xq16anx02ghiv9xa5bi2fsz78h945miqmi26bwcjxdagn"; };
-
-  in  {
-    description = "STM32CubeMX firmware repository setup";
-    wantedBy = [ "default.target" ];
-    serviceConfig = {
-      Type = "oneshot";
-      RemainAfterExit = true;
-      ExecStart = pkgs.writeShellScript "stm32cubemx-repo-setup" ''
-         cp -r ${stm32f1-v180}/. "$HOME/STM32Cube"
-         chmod -R u+w "$HOME/STM32Cube"
-      '';
-    };
-  };
   services.grdcontrol.enable = true;
 
   imports = [
@@ -859,8 +835,6 @@ in
     open = false;
     nvidiaSettings = false;
   };
-
-  services.udev.packages = [ pkgs.stlink pkgs.openocd ];
   services.udev.extraRules = if isAdata then ''
     ACTION=="add|change",KERNEL=="nvme[0-9]", ATTR{queue/scheduler}="none"
   '' else "";
@@ -916,7 +890,7 @@ in
   };
 
   # каждый компьютер имеет выход в интернет
-  networking.networkmanager.enable = ! config.services.harmonia.enable;
+  networking.networkmanager.enable = true;
   networking.hostName = "nixos";
   networking.firewall.allowedTCPPorts = [ 22 ] ++ lib.optionals config.services.harmonia.enable [ 80 ];